How to log into node01 slave from master console

I was giving the PV quiz which required to have /var/log/webapp dir in node01.
How do I create one?

ssh node01
mkdir -p /var/log/webapp

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Thanks a lot.

Have a query, if it’s a right thread.

Question: So, the default to which we login first is the master node ? while ssh-ing to node01, is it that the ssh keys (master public) were added to node01 for this assignment?

Yes, you are right. Trusted relationship has been already established from master to all worker nodes